[Berzelius-users] Berzelius downtime 2025-09-19

[Filip Polbratt]

Dear Berzelius users,

the rolling reboot of Berzelius login nodes for urgent security updates 
is done. Both login nodes are up since 10:25.

Next full downtime is on Tuesday 2025-09-23, starting at 09:00 CEST.

Best regards,
Filip Polbratt, NSC

On 9/11/25 11:00, Filip Polbratt wrote:
> Dear Berzelius users,
> 
> due to urgent security updates we will restructure the downtime planed 
> for Friday next week (2025-09-19) as a rolling update of the login nodes 
> this Friday (tomorrow). During the update one login node will always be 
> available. We will start with Berzelius2 at 2025-09-12 09:00 CEST and 
> follow up with Berzelius1 as soon as Berzelius2 has been returned to 
> service. The full system stop will be delayed until Tuesday 2025-09-23 
> 09:00 CEST. There will not be a downtime on 2025-09-19.
> 
> Batch jobs will continue to run during the rolling update of the login 
> nodes. Interactive jobs will be terminated when the login nodes are 
> rebooted. All user sessions on the login nodes will be terminated.
> 
> The reduced availability of 80GB A100 nodes is not affected by this and 
> remains in place. The reduced availability is to allow for the 
> commissioning and acceptance testing of a new weather forecasting cluster.
> 
> Best regards,
> Filip Polbratt, NSC
> 
> On 9/9/25 14:32, Filip Polbratt wrote:
>> Dear Berzelius users,
>>
>> due to system updates, we need to schedule a downtime of Berzelius 
>> that starts at
>>
>>       2025-09-19 09:00 CEST
>>
>> During the downtime, Berzelius will be unavailable (with no jobs 
>> running and users logged out from the login nodes).
>>
>> We expect to be able to bring Berzelius back up during the afternoon 
>> on the same day.
>>
>> Additionally, from 2025-09-17 to 2025-09-21 the number of nodes with 
>> 80GB A100 will be reduced due to work in the computer room where 
>> Berzelius is located.
>>
>> Best regards,
>> Filip Polbratt, NSC
>> _______________________________________________
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>> Berzelius-users at lists.nsc.liu.se
>> https://lists.nsc.liu.se/mailman/listinfo/berzelius-users
> 
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